Statistics – Applications
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16..133r&link_type=abstract
Advances in Space Research (ISSN 0273-1177), vol. 16, no. 7, p. (7)133-(7)136
Statistics
Applications
2
Flow Distribution, Gas Flow, Heat Transfer, Liquid Flow, Microgravity, Two Phase Flow, Viscosity, C-135 Aircraft, Glycerols, Mapping
Scientific paper
Two-phase gas-liquid flows have a wide range of applications in space including the flow of cryogenics in transport lines and heat-transfer fluids in a thermal control system. The behavior of these systems under reduced gravity must be understood in order to optimize the design and maintenance of such systems. Experimental studies on two-phase flow patterns and their transitions were conducted aboard the NASA KC-135 aircraft. A large set of flow pattern data for water-air and glycerin/water-air of different viscosities was reported. It was shown that two-phase flow under reduced gravity can be classified into four glow patterns: bubbly, slug, frothy slug-annular, and annular flows. Transitions between slug and frothy slug-annular, and frothy slug-annular and annular flows were predicted well using the liquid and gas Weber numbers as the mapping coordinates.
Rezkallah K. S.
Zhao Lifeng
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